CA1290231C - System for the production of rubber tubes - Google Patents
System for the production of rubber tubesInfo
- Publication number
- CA1290231C CA1290231C CA000523382A CA523382A CA1290231C CA 1290231 C CA1290231 C CA 1290231C CA 000523382 A CA000523382 A CA 000523382A CA 523382 A CA523382 A CA 523382A CA 1290231 C CA1290231 C CA 1290231C
- Authority
- CA
- Canada
- Prior art keywords
- bed
- production
- rubber tubes
- cores
- drive heads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/002—Handling tubes, e.g. transferring between shaping stations, loading on mandrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Invalid Beds And Related Equipment (AREA)
- Vibration Prevention Devices (AREA)
- Moulding By Coating Moulds (AREA)
- Gasket Seals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Abstract:
A system for the production of rubber tubes on elongate horizontal cores comprises two pairs of drive heads mounted on structures capable of displacement upwardly and downwardly with respect to coresponding fixed bases . Between the drive heads there is positioned a bed of predetermined length carrying, with the interposition of suitable cushioning means , intermediate stands for supporting the cores . Adjacent the said bed , on either side, there is a respective ground bar positioned substantially at floor level for supporting and guiding carriages which are movable parallel to the bed
A system for the production of rubber tubes on elongate horizontal cores comprises two pairs of drive heads mounted on structures capable of displacement upwardly and downwardly with respect to coresponding fixed bases . Between the drive heads there is positioned a bed of predetermined length carrying, with the interposition of suitable cushioning means , intermediate stands for supporting the cores . Adjacent the said bed , on either side, there is a respective ground bar positioned substantially at floor level for supporting and guiding carriages which are movable parallel to the bed
Description
lZ90~31 A sYstem for the production of rubber tubes The present invention relates to a system for the production of rubber tubes, provided with constructional characteristics able to permit a perfect alignment of the cores on which the tubes are made with respect to the rotary drive heads, regardless of the diameter of the cores.
Known systems for the production of rubber tubing in predetermined lengths substantially comprise a pair of rotary heads to which the ends of the cores are fixed, the cores being constituted by round bars, and supported along their length by a plurality of stands having a fixed adjustment and mounted on a suitable supporting structure or bed. In such known systems, given the length of the cores and the fixed height of the axes of rotation of the drive heads of the capstans, a correct operating process can only be obtained by utilising cores the radius of which is equal to the distance between the axis of the said drive heads and the support surface of the stands.
Obviously, small differences from this theoretical radius can be admitted without causing excessive working d~
., ~
1290~31 inconveniences; but differences greater than a certain limit, can cause an unwanted flexure of the end portions of the cores and, therefore, the risk of oscillation phenomena thereof.
If such oscillations happen it is essential to reduce, proportionately, the speed of rotation of the drive heads, with a corresponding reduction in the working capacity of the system. Moreover, in current systems for the production of rubber tubes, the carraiges which normally lie adjacent the beds, and which are utilised in applying the cladding and/or for the insertion of reinforcing strips, fabrics, metal wires and the like, onto tubes being produced, are usually carried by a pair of rollers slidable along U-shape guides fixed at the side of the supports of the beds themselves.
This type of fixing, however, is not able to eliminate the possibility of transverse oscillations of the carriages, with consequent detrimental effect on the proper operation of the process.
The present invention seeks therefore, to overcome disadvantages of the prior art systems by providing an installation for the production of rubber tubes, which allows for the possibility of a continuous adjustment of the height of the axes of rotation of the rotary heads driven by the capstans.
According to the present invention, there is provided a system for the production of rubber tubes comprising two horizontally extending cores on which the tubes are formed, characterised by the fact that it includes two 1 ~ 9 0~ 1 pairs of drive heads mounted on capstan structures capable of adjustment upwardly or downwardly with respect to corresponding fixed bases a bed of pre-determined length extending between the drive heads and carrying, with the interposition of cushioning means, stands for supporting the cores along their length and, adjacent the bed, there being a guide bar positioned substantially at floor level for supporting carriages which in use of the system cooperate with the said drive heads.
One advantage of the present invention is that it provides a system for the production of rubber tubes, in which unwanted transverse oscillations of the carriages lS moving along the two sides of the bed are minimised.
Another advantage of the present invention is that it provides a system for the production of rubber tubes, in which there are provided means which prevent or at least reduce vibration of the stands which support the core from being transmitted onto the bed.
One embodiment of the present invention will now be more particularly described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a schematic plan view of the bed of a system for producing rubber tubes and the drive heads positioned at the two ends thereof;
Figure 2 is a schematic end view of one of the carriages adjacent the bed, and one of the capstan structures supporting the drive heads;
Figure 3 is a perspective view illustrating the 12~0~31 coupling between one end of a core and a drive head;
Figure 4 is a longitudinal section showing the female attachment coupling for connecting a drive shaft of a drive head;
Figure 5 is a side view of the male part of the attachment coupling, which is securely fixed to the ends of the said core;
Figure 6 is a perspective view showing one of the stands for the support of the cores;
Figure 7 is a side view of the stand shown in Figure 6; and Figure 8 is a transverse section of the carriage guide bar adjacent the bed.
With reference now to the drawings, the illustrated system for the production of rubber tubes comprises two pairs of counterposed capstans, generally indicated with the reference numeral 1, between which is interposed a bed 2 the structure of which is formed substantially according to known constructional criteria. These capstans 1 are each constituted by a fixed base 3 incorporating mechanical means for raising and lowering a movable structure 4 coupled thereto and carrying a pair of drive heads 5. The said mechanical means may be formed, for example, by vertical threaded spindles engaged by corresponding nuts put into rotation jointly via a chain by means of a geared motor unit, or by other functionally equivalent mechanisms.
The drive shaft of each said drive head carries a terminal flange to which is connected a flange 6 of a female coupling unit 7 within which is fitted a female attachment 8 firmly fixed thereto by the engagement of 1290~
steel balls 10 in circumferentially spaced sockets 11, the balls 10 being housed in radial seats in the tubular body of the coupling unit 7 and being locked in position by an axially movable locking ring 9. The said female attachment 8 has a cylindrical seat 12 having differ-entiated sections open radially to the exteior through slot 13. The end of each core 14, in its turn, carries a male attachment 15 the free end 16 of which is shaped in such a way as to form, substantially, an eccentric disc. In practice the connection between the core 14 and the associated drive head is formed by inserting the end poart of the core, which carries the aforesaid male attachment 15, laterally into the interior of the slot 13 formed in the female attachment.
In this way the two attachments, by the effect of the particular form and the axial tension normally caused by the drive heads, by means of appropriate pneumatic-cylinders, are securely locked together thereby transmitting rotary drive from the motor to the core.
The said male and female attachments can of course be utilised for cores of any diameter.
The transverse distance between the axis of the drive heads 5 and the support surfaces of the stands 17 mounted at regular intervals on the bed 2 for the support of the cores themselves, can be adjusted at will at least within certain limits by operating, to raise or to lower the capstan by acting on the movable structure 33 4.
The said stands are each provided with a set of three rollers 18 having horizontal axes, which are mounted on 12902~1 a supporting structure 19 rigidly connected to the bed 2 with the interposition of a disc 20 of anti-vibrating material, and of a rubber block 21. By this arrangement the vibrations and shocks generated in operation of the system are transmitted only to the stands, thereby saving the bed from oscillations and therefore allowing these to be made using lighter structural elements that are utilised for the production of beds for systems of conventional type.
At the foot of the bed 2 there is disposed, on each side, a tempered and ground bar 22 for the guidance of carriages 23 normally cooperating with the capstans 1 for the production of tubes. This bar is mounted on a support 23 resting on an anti-vibrating plate 24 which, with the interposition of a neoprene or like disc 25 is supported by a base plate 26 also of anti-vibrating material. This ground bar guides the said carriages, which roll on a pair of rubber wheels 27, in such a way that these translate parallel to the bed without subjecting it to even the sm~llést transverse oscill-ation.
Known systems for the production of rubber tubing in predetermined lengths substantially comprise a pair of rotary heads to which the ends of the cores are fixed, the cores being constituted by round bars, and supported along their length by a plurality of stands having a fixed adjustment and mounted on a suitable supporting structure or bed. In such known systems, given the length of the cores and the fixed height of the axes of rotation of the drive heads of the capstans, a correct operating process can only be obtained by utilising cores the radius of which is equal to the distance between the axis of the said drive heads and the support surface of the stands.
Obviously, small differences from this theoretical radius can be admitted without causing excessive working d~
., ~
1290~31 inconveniences; but differences greater than a certain limit, can cause an unwanted flexure of the end portions of the cores and, therefore, the risk of oscillation phenomena thereof.
If such oscillations happen it is essential to reduce, proportionately, the speed of rotation of the drive heads, with a corresponding reduction in the working capacity of the system. Moreover, in current systems for the production of rubber tubes, the carraiges which normally lie adjacent the beds, and which are utilised in applying the cladding and/or for the insertion of reinforcing strips, fabrics, metal wires and the like, onto tubes being produced, are usually carried by a pair of rollers slidable along U-shape guides fixed at the side of the supports of the beds themselves.
This type of fixing, however, is not able to eliminate the possibility of transverse oscillations of the carriages, with consequent detrimental effect on the proper operation of the process.
The present invention seeks therefore, to overcome disadvantages of the prior art systems by providing an installation for the production of rubber tubes, which allows for the possibility of a continuous adjustment of the height of the axes of rotation of the rotary heads driven by the capstans.
According to the present invention, there is provided a system for the production of rubber tubes comprising two horizontally extending cores on which the tubes are formed, characterised by the fact that it includes two 1 ~ 9 0~ 1 pairs of drive heads mounted on capstan structures capable of adjustment upwardly or downwardly with respect to corresponding fixed bases a bed of pre-determined length extending between the drive heads and carrying, with the interposition of cushioning means, stands for supporting the cores along their length and, adjacent the bed, there being a guide bar positioned substantially at floor level for supporting carriages which in use of the system cooperate with the said drive heads.
One advantage of the present invention is that it provides a system for the production of rubber tubes, in which unwanted transverse oscillations of the carriages lS moving along the two sides of the bed are minimised.
Another advantage of the present invention is that it provides a system for the production of rubber tubes, in which there are provided means which prevent or at least reduce vibration of the stands which support the core from being transmitted onto the bed.
One embodiment of the present invention will now be more particularly described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a schematic plan view of the bed of a system for producing rubber tubes and the drive heads positioned at the two ends thereof;
Figure 2 is a schematic end view of one of the carriages adjacent the bed, and one of the capstan structures supporting the drive heads;
Figure 3 is a perspective view illustrating the 12~0~31 coupling between one end of a core and a drive head;
Figure 4 is a longitudinal section showing the female attachment coupling for connecting a drive shaft of a drive head;
Figure 5 is a side view of the male part of the attachment coupling, which is securely fixed to the ends of the said core;
Figure 6 is a perspective view showing one of the stands for the support of the cores;
Figure 7 is a side view of the stand shown in Figure 6; and Figure 8 is a transverse section of the carriage guide bar adjacent the bed.
With reference now to the drawings, the illustrated system for the production of rubber tubes comprises two pairs of counterposed capstans, generally indicated with the reference numeral 1, between which is interposed a bed 2 the structure of which is formed substantially according to known constructional criteria. These capstans 1 are each constituted by a fixed base 3 incorporating mechanical means for raising and lowering a movable structure 4 coupled thereto and carrying a pair of drive heads 5. The said mechanical means may be formed, for example, by vertical threaded spindles engaged by corresponding nuts put into rotation jointly via a chain by means of a geared motor unit, or by other functionally equivalent mechanisms.
The drive shaft of each said drive head carries a terminal flange to which is connected a flange 6 of a female coupling unit 7 within which is fitted a female attachment 8 firmly fixed thereto by the engagement of 1290~
steel balls 10 in circumferentially spaced sockets 11, the balls 10 being housed in radial seats in the tubular body of the coupling unit 7 and being locked in position by an axially movable locking ring 9. The said female attachment 8 has a cylindrical seat 12 having differ-entiated sections open radially to the exteior through slot 13. The end of each core 14, in its turn, carries a male attachment 15 the free end 16 of which is shaped in such a way as to form, substantially, an eccentric disc. In practice the connection between the core 14 and the associated drive head is formed by inserting the end poart of the core, which carries the aforesaid male attachment 15, laterally into the interior of the slot 13 formed in the female attachment.
In this way the two attachments, by the effect of the particular form and the axial tension normally caused by the drive heads, by means of appropriate pneumatic-cylinders, are securely locked together thereby transmitting rotary drive from the motor to the core.
The said male and female attachments can of course be utilised for cores of any diameter.
The transverse distance between the axis of the drive heads 5 and the support surfaces of the stands 17 mounted at regular intervals on the bed 2 for the support of the cores themselves, can be adjusted at will at least within certain limits by operating, to raise or to lower the capstan by acting on the movable structure 33 4.
The said stands are each provided with a set of three rollers 18 having horizontal axes, which are mounted on 12902~1 a supporting structure 19 rigidly connected to the bed 2 with the interposition of a disc 20 of anti-vibrating material, and of a rubber block 21. By this arrangement the vibrations and shocks generated in operation of the system are transmitted only to the stands, thereby saving the bed from oscillations and therefore allowing these to be made using lighter structural elements that are utilised for the production of beds for systems of conventional type.
At the foot of the bed 2 there is disposed, on each side, a tempered and ground bar 22 for the guidance of carriages 23 normally cooperating with the capstans 1 for the production of tubes. This bar is mounted on a support 23 resting on an anti-vibrating plate 24 which, with the interposition of a neoprene or like disc 25 is supported by a base plate 26 also of anti-vibrating material. This ground bar guides the said carriages, which roll on a pair of rubber wheels 27, in such a way that these translate parallel to the bed without subjecting it to even the sm~llést transverse oscill-ation.
Claims (6)
1. A system for the production of rubber tubes comprising two horizontally extending cores on which the tubes are formed characterized by the fact that the system includes two pairs of drive heads mounted on capstan structures capable of adjustment upwardly or downwardly with respect to corresponding fixed bases, a bed of predetermined length extending between the drive heads and carrying, with the interposition of cushioning means stands for supporting the cores along their length, and adjacent the bed, there being a ground bar positioned substantially at floor level for supporting carriages which in use of the system cooperate with the said drive heads
2. A system for the production of rubber tubes according to Claim 1, including two pairs of counterposed capstans between which there is interposed a bed having a structure known per se, characterized in that these capstans are constituted by a fixed base having mechanical means for raising or lowering a movable structure coupled thereto and carrying a pair of drive heads.
3. A system for the production of rubber tubes according to Claim 1 characterized in that the drive shaft of each said drive head carries a terminal flange to which is connected a coupling unit to which is connected a female attachment which is securely fixed thereto by axial movement of a connecting ring capable of locking steel balls within corresponding concave seats formed circumferentially in the attachment itself.
4. A system for the production of rubber tubes according to Claim 3, characterized in that the said ( female attachment is provided with a coaxial inner cylindrical seat having a section open radially to the exterior via a slot; and in that the terminal part of the aforesaid cores, in turn, carry a male attachment the free end of which is shaped in such a way as to form an eccentric disc.
5. A system for the production of rubber tubes according to any one of Claim 1, 2, 3 or 4 characterized in that the said stands substantially comprise a set of three rollers having horizontal axes, mounted on a supporting structure rigidly connected to the aforesaid bed with the interposition of a disc of anti-vibrating vibrating material and a rubber block.
6. A system for the production of rubber tubes according to any one of Claims, 1, 2, 3, 4 characterized in that at the foot of the said bed, on each side thereof there is disposed a tempered and ground guide bar for supporting carriages which are movable along the bed, each said bar being mounted on a support carried on a vibration-absorbing plate which, with the interposition of a neoprene disc or the like is supported by a base plate also of vibration material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT22906A/85 | 1985-11-20 | ||
| IT22906/85A IT1185728B (en) | 1985-11-20 | 1985-11-20 | PLANT FOR THE PACKING OF RUBBER HOSES, PROVIDED WITH CONSTRUCTION CHARACTERISTICS SUITABLE FOR PERFECTING A PERFECT ALIGNMENT OF THE SOULS, OF ANY DIAMETER, COMPARED TO THE ROTATING MOTOR HEADS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1290231C true CA1290231C (en) | 1991-10-08 |
Family
ID=11201751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000523382A Expired - Lifetime CA1290231C (en) | 1985-11-20 | 1986-11-19 | System for the production of rubber tubes |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4737230A (en) |
| EP (1) | EP0223746B1 (en) |
| JP (1) | JPH0651366B2 (en) |
| AT (1) | ATE50193T1 (en) |
| CA (1) | CA1290231C (en) |
| DE (1) | DE3668830D1 (en) |
| DK (1) | DK162201C (en) |
| ES (1) | ES2013608B3 (en) |
| IE (1) | IE59299B1 (en) |
| IT (1) | IT1185728B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1233543B (en) * | 1989-07-28 | 1992-04-03 | Deregibus A & A Spa | MACHINE FOR THE PRODUCTION OF VULCANIZED RUBBER HOSES. |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US140934A (en) * | 1873-07-15 | Improvement | ||
| US1151096A (en) * | 1913-08-05 | 1915-08-24 | Lacy Mfg Company | Pipe-covering machine. |
| US1374584A (en) * | 1918-05-07 | 1921-04-12 | Harley C Knecht | Apparatus for making rubber products |
| US1544546A (en) * | 1920-11-24 | 1925-07-07 | Erle K Baker | Means for producing tire carcass material and the like |
| US3015133A (en) * | 1959-02-05 | 1962-01-02 | Anaconda American Brass Co | Method of making jacketed strip-wound metal hose |
| US3202560A (en) * | 1961-01-23 | 1965-08-24 | Rock Island Oil & Refining Co | Process and apparatus for forming glass-reinforced plastic pipe |
| US3216080A (en) * | 1962-10-12 | 1965-11-09 | Midland Ross Corp | Extrusion apparatus for coating pipe |
| US3187494A (en) * | 1963-07-16 | 1965-06-08 | Goodrich Co B F | Hose winding apparatus |
| US3363042A (en) * | 1963-09-16 | 1968-01-09 | Prec Concrete Extrusion Corp | Method and apparatus for extruding straight or curved pipes and similar articles outof cement mix and like materials |
| US3730795A (en) * | 1968-12-18 | 1973-05-01 | Koppers Co Inc | Filament winding method |
| US3640656A (en) * | 1970-05-05 | 1972-02-08 | Fabric Fire Hose | Apparatus for continuous manufacture of reinforced hose |
| GB1497834A (en) * | 1974-06-05 | 1978-01-12 | Montagut Guix J Salvador | Manufacture of elongated hollow bodies from fibre-reinforced synthetic resins |
| US4063838A (en) * | 1976-05-07 | 1977-12-20 | Fiber Glass Systems, Inc. | Rod construction and method of forming the same |
| MX144554A (en) * | 1976-07-30 | 1981-10-26 | Pont A Mousson | IMPROVEMENTS TO THE PROCEDURE AND SYSTEM TO MODIFY THE THICKNESS OF A BODY EXTRUDED AT A CONSTANT FLOW |
| DE2750640A1 (en) * | 1977-05-04 | 1978-11-09 | Gomma Ivg Ind Veneta | DEVICE FOR MANUFACTURING RUBBER PIPES, ALSO FROM REINFORCED MATERIAL, IN SECTIONS OF LARGER LENGTH BY WRAPPING A CORE WITH STRAPS OF VULCANIZABLE RUBBER |
| DE2900597C2 (en) * | 1979-01-05 | 1981-01-29 | Mannesmann Ag, 4000 Duesseldorf | Device for coating steel pipes with thermoplastic material |
| JPS5775843A (en) * | 1980-10-30 | 1982-05-12 | Kuraray Plast Kk | Continuous manufacturing method of flexible rubber hose |
| US4372796A (en) * | 1981-08-10 | 1983-02-08 | Raychem Corporation | Method and apparatus for wrapping a tape around a pipe |
| EP0085214B1 (en) * | 1982-02-02 | 1988-11-17 | Nephi Rubber Products Corporation | Hose building machine |
-
1985
- 1985-11-20 IT IT22906/85A patent/IT1185728B/en active
-
1986
- 1986-11-04 US US06/927,268 patent/US4737230A/en not_active Expired - Lifetime
- 1986-11-04 IE IE290286A patent/IE59299B1/en not_active IP Right Cessation
- 1986-11-06 AT AT86830329T patent/ATE50193T1/en not_active IP Right Cessation
- 1986-11-06 ES ES86830329T patent/ES2013608B3/en not_active Expired - Lifetime
- 1986-11-06 DE DE8686830329T patent/DE3668830D1/en not_active Expired - Lifetime
- 1986-11-06 EP EP86830329A patent/EP0223746B1/en not_active Expired - Lifetime
- 1986-11-19 CA CA000523382A patent/CA1290231C/en not_active Expired - Lifetime
- 1986-11-20 DK DK556086A patent/DK162201C/en not_active IP Right Cessation
- 1986-11-20 JP JP61277803A patent/JPH0651366B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IT8522906A0 (en) | 1985-11-20 |
| ATE50193T1 (en) | 1990-02-15 |
| US4737230A (en) | 1988-04-12 |
| DK162201C (en) | 1992-03-02 |
| IE862902L (en) | 1987-05-20 |
| EP0223746B1 (en) | 1990-02-07 |
| EP0223746A1 (en) | 1987-05-27 |
| IE59299B1 (en) | 1994-02-09 |
| DE3668830D1 (en) | 1990-03-15 |
| IT1185728B (en) | 1987-11-12 |
| JPS62142634A (en) | 1987-06-26 |
| DK556086A (en) | 1987-05-21 |
| DK556086D0 (en) | 1986-11-20 |
| ES2013608B3 (en) | 1990-05-16 |
| JPH0651366B2 (en) | 1994-07-06 |
| DK162201B (en) | 1991-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3588374B2 (en) | Rail grinding car | |
| KR20130056237A (en) | Press bending station for bending heated glass sheets | |
| US4944175A (en) | Universal rolling mill stand with adjustable sets of horizontal rolls and vertical rolls | |
| US20030024772A1 (en) | Double deck elevator with adjustable floor height | |
| US5159869A (en) | Cutting station for a panel cutting machine | |
| CA1290231C (en) | System for the production of rubber tubes | |
| CA2200827A1 (en) | Storage and retrieval machine with pre-tensioned shuttle guides | |
| US5343685A (en) | Machine frame for a ring spinning or ring twisting machine | |
| CN111912617B (en) | Running-in test bed for electric locomotive driving unit | |
| KR102248883B1 (en) | Bending apparatus | |
| EP0430892A1 (en) | Truck for removing and locating motor vehicles in an automatic parking system | |
| US3862586A (en) | Gantry type large machine tool | |
| GB2298408A (en) | Mobile lifting system for rail vehicle bogies | |
| KR100797368B1 (en) | An apparatus for adjusting roll gap of skin pass mill | |
| JPH0674715B2 (en) | Mobile formwork for tunnels | |
| JP4197646B2 (en) | Rolling material guide for horizontal two-stage roll mount | |
| CN221295029U (en) | Long-distance belt conveyor | |
| KR19990062529A (en) | Housingless rolling mill | |
| CN220618040U (en) | Cam spiral groove elevator | |
| CN221493693U (en) | Bar water cooling device | |
| KR100856257B1 (en) | An apparatus for preventing the power error and communication error of moving car in curved rail | |
| CN113682888B (en) | Guide mechanism for guaranteeing linearity of steel wire feeding mould | |
| CN213256288U (en) | Single-pass rolling device of stainless steel strip cold rolling mill | |
| CN213316842U (en) | Connecting shaft bracket device of cogging mill | |
| GB1594381A (en) | Roller support assembly for a machine carriage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |